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Quelle if_rmnet.h Sprache: C |
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/* SPDX-License-Identifier: GPL-2.0-only
* Copyright (c) 2013-2019, 2021 The Linux Foundation. All rights reserved. */ #ifndef _LINUX_IF_RMNET_H_ #define _LINUX_IF_RMNET_H_ #include <linux/types.h> struct rmnet_map_header { u8 flags; /* MAP_CMD_FLAG, MAP_PAD_LEN_MASK */ u8 mux_id; __be16 pkt_len; /* Length of packet, including pad */ } __aligned(1); /* rmnet_map_header flags field: * PAD_LEN: number of pad bytes following packet data * CMD: 1 = packet contains a MAP command; 0 = packet contains data * NEXT_HEADER: 1 = packet contains V5 CSUM header 0 = no V5 CSUM header */ #define MAP_PAD_LEN_MASK GENMASK(5, 0) #define MAP_NEXT_HEADER_FLAG BIT(6) #define MAP_CMD_FLAG BIT(7) struct rmnet_map_dl_csum_trailer { u8 reserved1; u8 flags; /* MAP_CSUM_DL_VALID_FLAG */ __be16 csum_start_offset; __be16 csum_length; __sum16 csum_value; } __aligned(1); /* rmnet_map_dl_csum_trailer flags field: * VALID: 1 = checksum and length valid; 0 = ignore them */ #define MAP_CSUM_DL_VALID_FLAG BIT(0) struct rmnet_map_ul_csum_header { __be16 csum_start_offset; __be16 csum_info; /* MAP_CSUM_UL_* */ } __aligned(1); /* csum_info field: * OFFSET: where (offset in bytes) to insert computed checksum * UDP: 1 = UDP checksum (zero checksum means no checksum) * ENABLED: 1 = checksum computation requested */ #define MAP_CSUM_UL_OFFSET_MASK GENMASK(13, 0) #define MAP_CSUM_UL_UDP_FLAG BIT(14) #define MAP_CSUM_UL_ENABLED_FLAG BIT(15) /* MAP CSUM headers */ struct rmnet_map_v5_csum_header { u8 header_info; u8 csum_info; __be16 reserved; } __aligned(1); /* v5 header_info field * NEXT_HEADER: represents whether there is any next header * HEADER_TYPE: represents the type of this header * * csum_info field * CSUM_VALID_OR_REQ: * 1 = for UL, checksum computation is requested. * 1 = for DL, validated the checksum and has found it valid */ #define MAPV5_HDRINFO_NXT_HDR_FLAG BIT(0) #define MAPV5_HDRINFO_HDR_TYPE_FMASK GENMASK(7, 1) #define MAPV5_CSUMINFO_VALID_FLAG BIT(7) #define RMNET_MAP_HEADER_TYPE_CSUM_OFFLOAD 2 #endif /* !(_LINUX_IF_RMNET_H_) */ ¤ Dauer der Verarbeitung: 0.10 Sekunden (vorverarbeitet) ¤*© Formatika GbR, Deutschland |
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2026-03-28